Indian Journal of Radiology and Imaging Indian Journal of Radiology and Imaging

MUSCULOSKELETAL IMAGING
Year
: 2019  |  Volume : 29  |  Issue : 4  |  Page : 364--371

Role of the weight-bearing cone-beam CT in evaluation of flatfoot deformity


Khushboo Pilania1, Bhavin Jankharia1, Pradeep Monoot2 
1 Department of Radiodiagnosis, Jankharia Imaging Centre, 383 S V P Road, Bhaveshwar Vihar, Mumbai, Maharashtra, India
2 Department of Orthopaedics, Breach Candy Hospital Trust, 60 A Bhulabhai Desai Road; Department of Orthopaedics, Sir H N Reliance Foundation Hospital, Raja Rammohan Roy Rd, Prarthana Samaj, Khetwadi, Girgaon, Mumbai, Maharashtra, India

Correspondence Address:
Dr. Khushboo Pilania
Jankharia Imaging Centre, 383 S V P Road, Bhaveshwar Vihar, Mumbai - 400 004, Maharashtra
India

Introduction: Till date, weight-bearing radiographs have been the cornerstone for planning surgeries on flatfoot. The technique, however, has limitations due to the superimposition of the bones and the lack of reproducibility. Weight-bearing CT with its unique design overcomes these limitations and enables cross-sectional imaging of the foot to be done in the natural weight-bearing position. In this paper, we report our initial experience in weight-bearing cross-sectional imaging of the foot for assessment of flatfoot deformity. Materials and Methods: Around 19 known cases of flatfoot were scanned on the weight-bearing CT. Each foot was then assessed for the various angles and also for the presence/absence of extra-articular talocalcaneal impingement and subfibular impingement. Other associated abnormalities like secondary osteoarthritic changes, were also noted. Results: The Meary, as well as the calcaneal angles, were abnormal, in all but one separate foot. Forefoot abduction was seen in 7 of the 19 feet. The hind foot valgus angle was greater than 10° in all patients. Extra-articular talocalcaneal impingement was seen in 13 of 19 feet. Secondary osteoarthritic changes were seen in 14 feet. Conclusion: Weight-bearing CT scan is a very useful technique for evaluation of flatfoot and associated complications. It overcomes the limitations of the radiographs by providing multiplanar three-dimensional assessment of the foot in the natural weight-bearing position and at the same time being easily reproducible and consistent for the measurements around the foot. The definite advantage over the conventional cross-sectional scanners is the weight-bearing capability.


How to cite this article:
Pilania K, Jankharia B, Monoot P. Role of the weight-bearing cone-beam CT in evaluation of flatfoot deformity.Indian J Radiol Imaging 2019;29:364-371


How to cite this URL:
Pilania K, Jankharia B, Monoot P. Role of the weight-bearing cone-beam CT in evaluation of flatfoot deformity. Indian J Radiol Imaging [serial online] 2019 [cited 2020 Jun 2 ];29:364-371
Available from: http://www.ijri.org/article.asp?issn=0971-3026;year=2019;volume=29;issue=4;spage=364;epage=371;aulast=Pilania;type=0